Time trends in blue mussel, comparing wet-weight and dry weight concentrations
DHJ
24 11 2020
Statistics
All statistics are for blue mussel
Overview
Number of blue mussel time series per country
## country
## determinand_group Belgium Denmark Faroe Islands France Germany
## Biological effects (other) 0 0 0 0 0
## Chlorobiphenyls 27 5 0 408 42
## Dioxins 0 9 0 72 0
## Imposex 0 0 0 0 0
## Metals 24 155 0 411 24
## Organobromines (other) 0 0 0 140 24
## Organochlorines (other) 12 0 0 108 12
## Organofluorines 0 0 0 23 0
## Organotins 18 35 0 90 0
## PAH alkylated compounds 0 21 0 0 0
## PAH metabolites 0 0 0 0 0
## PAH parent compounds 39 222 0 526 73
## Polybrominated diphenyl ethers 30 0 0 216 60
## country
## determinand_group Iceland Ireland Norway Spain Sweden
## Biological effects (other) 0 0 0 23 0
## Chlorobiphenyls 108 417 259 206 14
## Dioxins 0 24 0 0 0
## Imposex 0 0 0 0 0
## Metals 84 517 398 138 22
## Organobromines (other) 0 0 63 0 2
## Organochlorines (other) 48 180 40 91 8
## Organofluorines 0 0 9 0 0
## Organotins 0 0 31 0 0
## PAH alkylated compounds 0 0 0 0 0
## PAH metabolites 0 0 0 0 0
## PAH parent compounds 168 571 175 230 26
## Polybrominated diphenyl ethers 36 315 116 186 12
## country
## determinand_group The Netherlands United Kingdom
## Biological effects (other) 0 63
## Chlorobiphenyls 9 545
## Dioxins 0 0
## Imposex 0 0
## Metals 8 752
## Organobromines (other) 1 0
## Organochlorines (other) 4 127
## Organofluorines 1 0
## Organotins 6 14
## PAH alkylated compounds 0 278
## PAH metabolites 0 0
## PAH parent compounds 12 1004
## Polybrominated diphenyl ethers 9 175Number of significant linear trends
For metals and chlorobiphenyls separately| Metals | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 817 | 204 |
| TRUE | 163 | 288 |
| Chlorobiphenyls | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 443 | 56 |
| TRUE | 110 | 368 |
| Polybrominated diphenyl ethers | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 92 | 17 |
| TRUE | 32 | 35 |
| PAH parent compounds | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 677 | 78 |
| TRUE | 74 | 197 |
| Organochlorines (other) | ||
| p_linear_trend_dw <= 0.05 | ||
|---|---|---|
| FALSE | TRUE | |
| p_linear_trend_ww <= 0.05 | ||
| FALSE | 152 | 13 |
| TRUE | 24 | 48 |
Trends, up & down
| determinand_group | |||||
|---|---|---|---|---|---|
| Chlorobiphenyls | Metals | Organochlorines (other) | PAH parent compounds | Polybrominated diphenyl ethers | |
| Trend | |||||
| declining (ww & dw) | 354 | 183 | 43 | 162 | 33 |
| declining (ww only) | 104 | 133 | 20 | 56 | 27 |
| declining (dw only) | 37 | 81 | 11 | 52 | 12 |
| increasing (ww & dw) | 14 | 103 | 5 | 33 | 2 |
| increasing (ww only) | 6 | 30 | 4 | 18 | 5 |
| increasing (dw only) | 19 | 123 | 2 | 26 | 5 |
| declining ww, increasing dw | 0 | 2 | 0 | 1 | 0 |
| increasing ww, declining dw | 0 | 0 | 0 | 1 | 0 |
| no trend (ww & dw) | 443 | 817 | 152 | 677 | 92 |
Plots of slope of linear trends
X axis: Slope of time trend (i.e., change per year), wet-weight concentration
Y axis: Slope of time trend (i.e., change per year), wet-weight concentration
- Red line: Regression line (red) calculated using Deming (orthogonal) regression
- Blue dotted line: 1:1 line (same trend using w.w. and d.w. concentration)
Overall per group
Individual compounds
PCBs
PCBs (interactive)
Metals
Metals (interactive)
Individual compounds, difference plot
PCBs
PCBs (interactive)
Metals
Metals (interactive)
PCBs by country
UK
UK (interactive)
Ireland
IE (interactive)
France
FR (interactive)
Spain
ES (interactive)
Iceland
IS (interactive)
Norway
NO (interactive)
Metals by country
UK
UK (interactive)
Ireland
IE (interactive)
France
FR (interactive)
Spain
ES (interactive)
Denmark
DK (interactive)
Iceland
IS (interactive)
Norway
